diff --git a/src/modal/popconfirm.js b/src/modal/popconfirm.js
index ca4e677..cc83745 100644
--- a/src/modal/popconfirm.js
+++ b/src/modal/popconfirm.js
@@ -150,6 +150,10 @@ class PopConfirm extends Component {
 
     if (left < 260 || (left > 260 && window.innerWidth - left > 260)) {
       placement = 'right'
+      left -= 12
+      if (left < 0) {
+        left = 0
+      }
       styles.left = left + 'px'
     } else {
       // 减去小三角形的位移 12px
diff --git a/src/modal/tooltip.js b/src/modal/tooltip.js
index ffd58b3..2013243 100644
--- a/src/modal/tooltip.js
+++ b/src/modal/tooltip.js
@@ -94,9 +94,16 @@ class Tooltip extends Component {
 
       if (left < 360 || (left > 360 && window.innerWidth - left > 360)) {
         placement = 'right'
+        left -= 12
+        if (left < 0) {
+          left = 0
+        }
         styles.left = left + 'px'
       } else {
-        let right = window.innerWidth - left - this.clientWidth
+        let right = window.innerWidth - left - this.clientWidth - 12
+        if (right < 0) {
+          right = 0
+        }
         styles.right = right + 'px'
       }